Lubricating device



W. B. RULON.

LUBRICATING DEVICE.

APPLICATION FILED SEPT.20, 1920.

Patented Aug. 16, 1921.

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1'0 HAROLD PEROT KEEN, OF BELLEV'UE, DELAWARE.

LUBRICATING DEVICE.

Application filed September 20, 1920.

To all NJ/LOW it may concern.

Be it known that I, lVATsoN l3. RULON, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a certain new and useful Improved Lubricating Device, of which the following is a specificatlon.

The present invention has relation to a lubricating device of the type in which a spring pressed discharge valve, including a staff, has oscillatory movement with respect to its valve seat by virtue of concussion.

Practice dictates that, commercially con sidered, a lubricating device of this character is not satisfactory for the reason that a vacuum is present beneath the valve thus tending to unduly hold the valve to its seat and further tending to permit irregular discharge of lubricant when the valve is finally displaced.

Practice further dictates that by overcoming the presence of a vacuum beneath the discharge valve and creating in lieu thereof a neutral zone, or in other words, equalizing atmospheric pressure above the lubricant and below the valve of the device, small but uniform quantities of lubricant may be discharged from the device under slightest concussion or vibration.

To secure the proper functioning of the lubricating device for attaining these advantageous results, open communication is established between the lubricant chamber at a line above the lubricant level and the space below the valve seat.

The leading object of the present invention therefor may be said to reside in the provision of means whereby not only may a lubricating device of the type under consideration be commercially bettered without material alteration of its conventional form but such alteration may be secured at practically no increase in cost of production. Other and further objects will appear hereinafter.

he invention consists of the improvements hereinafter described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying Specification of Letters Patent.

Patented Aug. 16, 1921. Serial No. 411,656.

drawings which:

Figure 1, is a view bricatiug invention.

Fig. 2, is a view thereof section.

Fig. 3, is a view central section, and

Fig. l, is a similar view of modified form of construction.

For the purpose of illustrating my invention l have shown in the accom mnying drawings several forms thereof which are at present preferred by me, since the same have been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrunieutalities as herein shown and described.

in the drawings and. referring more particularly to Figs. 1, 2. and 3, l0 designates a receptacle of any preferred design for containing a lubricant. The bottom of said receptacle terminates in an extension 111. having an opening theretlu'ough which comnuulicatcs with the cup interior to form a discharge duct 11. The juncture of the receptacle and extension walls form an annular valve-seat 12 which seat overhangs the opening through the extension 11. The underside of the valve-seat is beveled as illustrated at 12 to provide a knife-edge for a purpose to presently appear. Seated upon valve-seat 12 is a valve 1 and extending into discharge duct is a stem 14. and extended upwardly from said valve is a staff l5. In practice the valve stem and staff are formed as an integral part although this is not essential. The diameter of stem 14 is slightly smaller than is the diameter of the throat of the discharge duct so that said stem may be free to respond to oscillatory or swaying movement of staff 15. Staff 15 is provided with a screw-threaded exterior and a weight 16 cooperatively engages with said screw-threaded part. A. coiled spring 17, preferably of inverted conical form, is interposed between the valve and an appropriate part of the receptacle. In the drawforming part hereof, and in in elevation of a lu deviceembodying features in the partly in central thereof principally in a sl ightl y ings the spring is shown as being interposed between the valve and the receptacle cover or cap. Passing entirely through the combined valve, stem and staff is a passage 18 for establishing communication between the receptacle interior and the discharge duct, the top of staff 15 lying in a plane above the level of the lubricant. Thus constant, equal atmospheric pressure is established above the lubricant and below the valve so that when the valve is tilted upon its seat small but uniform quantities of lubricant may be discharged. The beveled portion 12 of the valve seat provides sufficint clearance for the stem 1 1 to tilt with the valve and staff. The stem is sufficiently long however to prevent undue tilting of the valve and to prevent valve 13 entirely leaving its seat. In practice I have found it desirable to provide the lubricant receptacle with a sight opening 20 in order to determine the quantity of lubricant contained in said receptacle. A cap 21 is removably fitted tothe receptacle. Should it be desired to remove the valve and its complemental parts, it is merely necessary to detach cap 21, whereupon said staff tem, valve and spring may be readily lifted through the open top of the receptacle.

Proceeding to describe the functioning or". the above described lubricating device it may be stated that communication being established between the discharge duct and receptacle interior a neutral zone is provided below the lubricant. The concussion of vibration imparted to the device from such apparatus, machine or the like to which it is attached tends to cause oscillation of the staff including valve and stem with theresult that the valve readily unseats and reseats itself to permit discharge of lubricant in smallbut uniform quantities. If: concussion or vibration be slight, obviously the valve does not as readily unseat and consequently smaller quantities of lubricant escape than when energetic motion is imparted to the valve. The response of the valve to vibration may be controlled however by regulating the weight 16 to increase or decrease the oscillation of the staff and valve. In operation thestafl' creates a certain amount offriction which tends to keep the lubricant in free-flowing condition which is most do sirable especially in cold climates.

In Fig. i, the valve-seat 12 is formed at the lower end of the receptacle extension 11 and the valve 13 is located therebeneath.

The hollow staff 15 extends up through said extension into the receptacle 10 but the previously described stem is omitted. The spring 17 is interposed between a part of the valve seat and the adjustable weight 16 the spring bein Xtended down through the discharge duct for this purpose.

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumeratec as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and rel'ia le results, it isfto be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantage What 1 claim is: r l

1. A lubricating device comprising a lubricant containing receptacle including a discharge-duct, a tilt-ably mounted. spring pressed valve for controlling the passage of lubricant through said duct and means for forming communication between the part of said receptacle above the level of its lubricant content and the space below said valve for establishing above the lubricant and below the valve constant, equal, atmospheric pressure.

2. A lubricating device comprising a lubricant containing receptacle including a dis charge duct, a tiltably mounted spring pressed valve having a passage therethrough for controlling the passa e of lubricant through aid duct, a hollow staff connected to and projected above said valve into said receptacle, a hollow stem connected to and projected below said valve into said dis charge duct, the oponingthrough said staff valve and stem being in registerand a weight adjustably mounted upon the free end of said staff. a

3. Alubricating device comprising a lubri-' cant containing receptacle including a discharge-duct, a'tiltably mounted valve for controlling the passage of lubricantthrough said duct, a coiled spring interposed between said valve and a part of said receptacle, a hollow staff connected to and projected above said valve through said spring and adapted for oscillatory movement within saidspring and a weight adjustably mounted upon said staff for increasing and decreasing the 0s cillatory movement it said staff.

In testimony whereof I have hereunto signed my'name.

WATSON 13. euros. 

